Ports - Jessica

[jessicacaley]

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Comprehension Questions

Question	Answer
What is the flow of data from input on the form to being a new card on the board?	As text is entered in the NewCardForm component, it's saved into the state of the form. When the form is submitted, the card is posted to the API and, if successful, a callback function to Board is called (and state is cleared in the form). In Board, the new ID is calculated and the new card with its ID is added to the beginning of the cards state in Board. With the state change, the page is rerendered with the new note.
What function did you use to make the GET request from the API to get the list of cards? Why use that function?	componentDidMount, because we don't want to make the API call until the page is ready to receive the package.
How do snapshot tests differ from unit tests?	We're simply comparing a previous layout of a page again the current one. It's testing for change, not for "function." It's a helpful way to test front-end view in a way that unit tests can't reliably do.
What purpose does Enzyme serve in testing a React app?	Enzyme allows up to test a shallow copy of the page instead of all the nested components.